LSDAS/LSAC accepted #s of LOR different from university website requirements?

This has probably been hashed out xmillion times before, but to bring it back up to the surface where people won't have to dig through all these other posts -- a simple question that I cannot find an answer for:

If a university website states that they accept up to say two LORs, but then LSDAS/LSAC states in its list that the school takes up to four, who do you listen to? I have four professors writing letters for me, all in different capacities.

I'd love to submit all four to as many schools as possible, but what do I do in the case of a difference between university requirements and LSAC/LSDAS requirements?